Home / 18,423.44-25,428.44-11,707.75

Finding the Fourth Proportional to 18,423.44, 25,428.44 and 11,707.75

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Solution

The fourth proportional to 18,423.44, 25,428.44 and 11,707.75 is: 16,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.44 : 25,428.44 = 11,707.75 : x
  2. Step 2: Convert to fraction form
    18,423.44/25,428.44 = 11,707.75/x
  3. Step 3: Cross multiply
    18,423.44x = 25,428.44 × 11,707.75
  4. Step 4: Simplify right side
    18,423.44x = 297,709,818.41
  5. Step 5: Solve for x
    x = 297,709,818.41/18,423.44
  6. Step 6: Final answer
    x = 16,159.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.